campaign The troops Bonaparte left behind were supposed to be honourably evacuated under the terms of the Convention of El Arish Kléber had negotiated with Smith and the Ottoman commander Kör Yusuf in early 1800, but Britain refused to sign and Kör Yusuf sent an amphibious assault force of 30,000 Mamlukes against Kléber. Kléber defeated the Mamlukes at the battle of Heliopolis in March 1800, and then suppressed an insurrection in Cairo. On 14 June (26 prairial), a Syrian student called Suleiman al-Halabi assassinated Kléber with a dagger in the heart, chest, left forearm and right thigh. Command of the French army passed to General Menou, who held command from 3 July until August 1801. Menou's letter was published in Le Moniteur on 6 September, with the conclusions of the committee charged with judging those responsible for the assassination: The committee, after carrying through the trial with all due solemnity and process, thought it necessary to follow Egyptian customs in its application of punishment; it condemned the assassin to be impaled after having his right hand burned; and three of the guilty sheikhs to be beheaded and their bodies burned. The Anglo-Ottomans then commenced their land offensive, the French were defeated by the British in the Battle of Alexandria on March 21, surrendered at Fort Julien in April and then Cairo fell in June. Finally besieged in Alexandria from 17 August – 2 September, Menou eventually capitulated to the British. Under the terms of his capitulation, the British General John Hely-Hutchinson allowed the French army to be repatriated in British ships. Menou also signed over to Britain the priceless hoard of Egyptian antiquities such as the Rosetta Stone which it had collected. After initial talks in Al Arish on 30 January 1802, the Treaty of Paris on 25 June ended all hostilities between France and the Ottoman Empire, returning Egypt to the Ottomans. Scientific expedition An unusual aspect of the Egyptian expedition was the inclusion of an enormous contingent of scientists and scholars ("savants") assigned to the invading French force, 167 in total. This deployment of intellectual resources is considered as an indication of Napoleon's devotion to the principles of the Enlightenment, and by others as a masterstroke of propaganda obfuscating the true motives of the invasion: the increase of Bonaparte's power. These scholars included engineers and artists, members of the Commission des Sciences et des Arts, the geologist Dolomieu,